Safety controlling mechanism.



' PATBNTED PEB. 25

T: R, BELL. I SAFETY GONTROLLING MEGHANISM.

I I II I I" |I I III I II I II I II I II I' II E I I I \L I I I I I I I APPLICATION FILED APB 11,1907I UNITED STATES PATENT OFFICE.

THADDEU-S R. BELL, OF NEW YORK, N. Y.

SAFETY COTROLLNG- MIECHANISM.

Specification of Letters Patent.

Patented Feb. 25, 1908.

Application nea prix 11.1907. serai No. 367.533.

To all wlmi/v. it 'may concern:

Be it known that I, THAnDEUs R'. BELL, a

citizenof the .United States, residing in the city, county, and State of New York, have invented certain newpand useful Improvements in 4SafetyyControllin Mechanism, of which the following is a specification.

This invention relates to certain improve ments in safety controlling mechanism, such as are particularly designed andadapted for use in connection with locomotive engines, railway andstreet cars, and other vehicles "for .lesseniug theliability of derailmentv or particnhir attention upon the part ofthe engineer, charge; g.

The inventipn consists in the employment niotorinan, or other person in y of i'nechanism actuated from the horizontal pivotal movement ofthe truck or axle, rela-- tive -to the body of the vehicle and connected to actuate throttle, brakes; controller or other speedcontroiling part or element of .the.;.vehicle, .whereby upon approaching a.

' en rvze; the said mechanism is 'automatically actuated from` such movement of the truck or axle .relativeto'the body of the vehicle and'. in turn' ac tuates the throttle, brake mechanism, electric controller, or other speed regulating element'of the vehicleto reduce the speeld within the limit of safety.

Thev invention also contemplates certain novel ffcaturcs and .principles of the construction, and combinations .and arrangements rf,:th e vseveral* parts of the im roved safety (':on'trolling mechanism, where y certain in-incitantadvantages are attained and the device. is .rendered simpler, cheaper and otherwise better adapted and more convenicnt fonuse all as'will be hereinafter fully t fort h, Y

The novel feature's'df the-invention will be carefully defined inthe claims.

In thc-accompanying drawings which serve to illustrate myiinvention Figure 1 is a somewhat glia'graphic view Ashowing my improvement applied for use inconnection with a locomotive engine, and Fig. 2 is a somewhat diagraphic view showing the -improved safety controlling mechanism applied for use in connection with an electric car or' the like.

forward truck of the locomotive, having connection at 2 with the forward end of the body 3 of the engine, to ermit pivotal movement of said 'truck in a orizontal plane beneath the body of the locomotive to enable the- Same to round curves in the track, and 4 represents a lever, fulcrumed at 5 u on the `forward .part ofthe locomotive bo y, and

having connection by means of a' link or Referring first to Fig. 1, 1 indicates the the like, with the outer part of the truck l,

so that as the latter swings pivotally beneath the body of the locomotive upon encountering a curve in the track, such livotal movement will be transmitted to t e lever 4 to swing the same pivotally in av horizontal direction. The outer free end Aof lever 4 has connection with the forward end of a rod 7 mounted to slide'in bearings along the sideportionof 'the engine at or adjacent to the cab thereof, and said rod carries a valve 8 arranged for reverse sliding movements in a casing 9 to which steam is supplied in any preferred wa from; the locomotive boiler.

he valve 8 as a port 1() which, when the valveis in central position, this being the position' of the parts when the locomotlve is upon a straightv track and the truck 1 and lever 4 are not` pivotally moved, is adapted to permit free and unobstructed ow of steam from the interior of the casing to oppositely arranged orts 11, 11'of the casing ``9' and thence, y way of suitable pipe connections'ldto the respective cylinders. This valvecasing'g is inserted in the steam supply from the boilers, after the fashion of a throttle, and the arrangement oi the parts is such that when the forward truck encounters acurve in the track, and swings pivotally beneath the locomotive body, itsfthrowits port 10 more or less out of registry with the ports 11, 11 of the casing in such a manner .as 'to automatically cut down the steam supply to the cylinders irrespective-of any action on the part of the engineer.

By this arrangement, it i.; obvious that the speed vof the locomotive may be automaticengineer shall'- rinsingpipes connebed with @libral- 'range sirable, operate the lever 2'Qft`o move the` Y'llvlI 18 and open the port s' "of`ca'sing 18* with 7 liicle; and mec casing 18L to the' valve out of o allyirdefiwithmhe Iimts, saf i' the encountering of a curve. iii-:th

`xn'eclmnisni andresult is at out action o n the partof thee 1n permit of this operation,

In'connectionivith'the contro ism constructed as above descri ,1 it '1s vantageous to pevidemeans wlei'eb permitted ca speed of the' 4rounding passed the termination of the curve. "Ifo I have showntlie steam supply pipes 16 leading to the respective Qylin e tended across the Avalvecasing 9, and co orte of an auxiliary-valve c 1n 118, said) ports beingl controlled a val 1'81 normally hekl in'.` posilflolcilp'se a ports with 'which the, pipes oli-1 the' communicate by-v means o'f' 8'; spring-19 "b provided with an operating-lever where l' the engineer may move the valve against the tension of said spring to opensaidjpo of'casing 18"'. The s'aid 'g 189: lsoh be obvious that the. engineer may, "hen which the pipes of the'byp'a cate, so that steam d mit the engine to runfa s d even'w 'en the automatically .controlling yalve 8 is actuated from the turning movementof 'the forward truck to cutdown the steam supply to the cylinders? Bythis construction the engineer may at any'desired time, operate lever 20 to throw the controlling eration, b ut as soon' as sai .lever is release the s .auxiliary valve 18 to c os'e position.

In Fig. 1 I have also shown the valve rod 7 connected to actuate a-'release valve' 12 con` trolling theair within the train pipe 14 or other part of the brake mechanism, in such a way that the brakes are automatically set upon the encountering of a curve in' the tracks by the forward truck of the locomo-` tive, so that thc speed may bereduced also through this agency.

In liigl 2 'I have shown the application of my improvements to a n lotorfvehicle, the arrangement being similar to that aboved'- scribed except that the rod 7-is connected to actuatc the ever 15 ofthe electric controller in such a way that when the forward truck encounters a curve in the track, the current truck shall have mechamsmfis'capa rs' provide with a bypass 1'7 eri P1' l thusdescribed my invention, I

19 will return the axle mounted for pivotal movement in a horiplane, propelling means for the ve- 1 15 tpmatically re-' 'the speed withn the limit of 1 (Fromhd above description it. be aphat the safety controllingxnechan- 'royements isfof an S' inexpensive nature `v ly da'pted for use by thelauto character 0f its opvof the movin thfot requiring any particular Brt Qflf'ligill, motolmel ausl it also be 'above' escription .that the ble of considerable modiiicationwithout materialdeparture from the Lprmciplesand s irit the invention, and

fablereason do not' desire to be under- "asf limiting'myself tothe precise form arrangement .of the parts herein set j in carrying out my invention in pracelfp to vthe employment of m exclusively in connection wit pa ticularc lass 'ofvehicles, since it is dentfzhat the feature of automatic conders themechanism suitableforemyment in connection With-all classes of l le d vehicles.

cla'

'I he combination of a vehicle havingan axle mounted for pivotal movement in a horizontal plane, ropellmg' means for the veanism actuated from the ivtal movement of the axle and arrange to means. n

2. -The combination of a vehicle having an C0ntr9l'the operation of said propelling zontal lane, an engine arr ed Ato ro el 1` thevvehicle and provided witlliga steanli sii) -g plya valvecontrolling said steam supp y an mechanism actuated from the pivotal movement of the axleand arranged to control the operation o'f said valv 3 The combination of a'vehicle havingan axle. mounted for pivotal movement in a hori- 1 3o Pe g .vehicle wlthmfthe `limit of safety 75 ori do I desire to be understood as axle mounted for pivotal movement in a'hori'- ply'of Seid propelling 125. anism actuated from 1 of the axleand con` Zonta-l plane/,propelling means for th'vehii cle, mechanism actuated from the pivotal movement of the axle `and arranged to control the operationof the propelling means,-

and means, independent of said controlling mechanism and arranged to control 'the propelling means.

In witness Whereor` I have hereunto signed my name this 8th day of April 1907 ,inthe presence of vtwo subscribing Witnesses.

v T HADDEUS R. BELL. Witnesses: J. D. CAPLINGER,

H. G. HOSE. 

